<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
      body{
        font: 12px "simhei", Arial, Helvetica, sans-serif;
        color: #666;
      }
      body>div{
        width: 1000px;
        background-color: pink;
        /*块级元素居中*/
        margin: 0 auto;
      }
      #t_l_div{
        width: 611px;
        height: 376px;
        float: left;
      }
      #t_r_div{
        width: 375px;
        height: 376px;
        float:right;
      }
      #t_div{
        overflow: hidden;/*解决高度为0的问题*/
        margin-bottom: 10px;
      }
      #t_div>div,#b_l_div,#b_r_div>div{
        background-color: #e8e8e8;
      }
      #b_l_div{
        width: 366px;
        height: 233px;
        float: left;
      }
      #b_r_div>div{
        width: 198px;
        height: 233px;
        float: left;
        margin-left: 10px;
      }
      #b_r_div{
        float: right;
      }
      #b_div{
        overflow: hidden;/*解决高度为0的异常*/
      }
    </style>
</head>
<body>
<div>
  <div id="t_div">
    <div id="t_l_div"></div>
    <div id="t_r_div"></div>
  </div>
  <div id="b_div">
    <div id="b_l_div"></div>
    <div id="b_r_div">
      <div></div><div></div><div></div>
    </div>
  </div>
</div>
</body>
</html>